Pneumatic tire.



PATENTBD JULY 24, 1906. J. A. SWINEHART.

PNEUMATIC TIRE.

APPLICATION FILED 0OT.25; 1905 INVENTOR,

B Z MM PATENT, ()FFIOE.

STATES ISWINEHART, or AKRON, omo,

Be it known that I, JAMES A. S INEHARI'T, a" citizen of the United' States, r siding at Akron, in the county ofsummit and State of tion, which will enable ot ers skilled in the ro' Ohi0,have invented certain new and useful Improvements in Single-Tube Pneumatic Tires; and I do declare that the following is a iull, clear, and exact descri -tion of the invenart' to which it appertains to make and use I r the same.

. My invention relates to a single-tube pneumatic tire adapted to -be used with a clencherrim; and the objects of the invention are, first, toprovide asingle-tube pneumatic tire which is so constructed that it will revent rim-cutting when. the tire becomes eflated while on the road, and, secondly, to provide a tire of this kind which can be practlcall renewed and continued in use when it has con punctured to an extent that it is beyond re- 4 pair or recovery by theordinary methods.

' In the accompanying drawings, Figure 1 is a perspective view of a sectiona portion ofa tire embodyin my invention, and Fi .2 is a cross-section o a modification thereo As thus sho'wn,A represents a single-tube pneumatic tire as a whole, and a is the base or inner 'ortion thereof which engages in rim B." Sai rim necessarily is of t e so-called clencher variety and may be of the particularf style shown herein and on which I have Letters Patent or an other suitable and effective style or kind 0 clencher-rim.

An essential and novel feature of the ,tire is the-solid portion or base a, which is of such depth relatively from inner tube a inward that'a corresponding to 2 2, Figs. 1 and 2, and drawn betweentube a/ and said base will beon a plane outside of the edges 6 of rimB, thus afi'ordin a solid sustaining-base for the load within t 6 said edges of the rim apart from the tube and which with the ckness of the collapsed tire omside of said base will be ample to carry the load and prevent possible rim-cutting even if the tire be wholly deflated by puncturin or'otherwise and has to travel in that con 'tion pending repairs. -Obviousl solid to such depth as to take the load rather than putting it on the edges of the rim, as formerly, and which is ractically equivalent to having the tire solid throughout, at least so far as the temporaryneeds of the tire are concerned; This construction and adapta- Bpeciflcation of Letters PatentQ it iiman t1sd0ctober2t,1905. Serialllo.284.272.

this advantage is ob. tamed by reason 0 the'base of the tire being PNEUMATIC TIRE.

Patented July 24, race, I

tion is important, furthermore, because it enables me to employ a clencher-rim with single-tube pneumatic tire and WhlGl'l would be nnpr'acticable' or impossible if the plane of 14 the inner tube a were to come down so as to be measurably between'the clencher-edge the rim and serve to assist in holding tire-on the rimin the old way: In that r any accidental deflation of the saidtube puncture or otherwise would almost certainly release the tire'irom itsfastenings, and it would be violently cast off the wh el if the machine Wereunder' any considerab 6 speed. If not cast iofi, it would, rim-cut and be ruined. Of course such contingencies must be guarded against by every possible PI9-" caution, and'hence I have made the resent construction of tire which combines t advantages of a neumatic tire anda prevent rim-cutting, as already described,

which materially enhances the value of the invention, because it rovides against what is otherwise a very de ective construction, as well as a possible cause of material expense and dan er to the user. Finally and as lanned or in the construction of the tire A,

am enabled to take care of an otherwise-- irremediableguncture, or leak in the tire by removing it 0m thewheel and slitting the same centrally in the base around its entire inner circumference on a line corresponding to dotted line 4, Fig. 2, and then inserting an mner or supplemental tube within the punctured tube, which is brought into operating relation with and adaptedto be filled through valvenipple 5', as usual. The outer of the two tubes will thus inclose the inner tube, and the tire can be placed back on the wheel in as good or better condition than originally and at,a comparativel T small ex ense, especially as compared wit an entire y new tire. When the sp it tire is restored to the wheel,

it is locked within rim B as originally, and it is none the less firm therein and eflicient in service, notwithstanding said slit.

The tire A has channels or grooves a or and Without other material or acomposite or their equivalent at its sides extending entirely around the base offthetire, as shown in the present construction, and adapted to have the edges b of the rim en agetherewith just as if the wholetire were so id. It will be seen. that the rubber about tube a is unitary with base a, so that the entire tire goes on the market as one complete article of manufacture without the rim.

- In Fig. 21 further show the outer its edges into base a, which makes an effective anchorage for said tube and prevents it pulling away from the base. j

The base a may be exclusively of rubber said base is engaged at its edges, thesaid base having a solid depth greater than the 1y 6 of. the .fabric of inner tube 0; brought own at depth of the rim andfilling the space between and above the edge's'of the rim, the

edges of the fabriclining the inside of the tube extending. through said base, metallic ieces transversely of said base throu h said tabric engaging beneath the edges of t e rim,

and a tie centrally, of said base WlthwWhiCh said transverse pieces engage.

2. In vehicle-wheels, a clencher-rirn, a combined pneumatic and solid-rubber tire comrising an endless pneumatic tube and a solid tiase therefor of greater depth fromside to side than said rim, whereby when said pneumatic tube collapses the tire rideson said base, and not on .the edges of the rim, and

means transfixing thetire beneath the edges of said rim, and a metallic tie in the base of the tire'w'ith which said transfixing means are engaged.

In testimony whereof I'sign this specification in the presence of two witnesses.

Y JAMES, A. SWINEHART.

Witnesses: I I

' QA. SELL,

A. W. MosnR. 

